Home / 1,407.30-2,111.02-433.42

Finding the Fourth Proportional to 1,407.30, 2,111.02 and 433.42

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Solution

The fourth proportional to 1,407.30, 2,111.02 and 433.42 is: 650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.30 : 2,111.02 = 433.42 : x
  2. Step 2: Convert to fraction form
    1,407.30/2,111.02 = 433.42/x
  3. Step 3: Cross multiply
    1,407.30x = 2,111.02 × 433.42
  4. Step 4: Simplify right side
    1,407.30x = 914,958.29
  5. Step 5: Solve for x
    x = 914,958.29/1,407.30
  6. Step 6: Final answer
    x = 650.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.